Mechanical device



1940- E. w. HANDLEY ETAL 2,223,234

MECHANICAL DEVICE Filed Feb. 19, 1940 2 Sheets-Sheet 1 1940- E. w.HANDLEY ETAL 2,223,234

MECHANICAL DEVICE F'iled Feb. 19, 1940 2 Sheets-Sheet 2 lnweamta uPatented Nov. 26, 1940 PATENT OFFICE 7 2,223,284 MECHANICAL DEVICEErnest W. Handley, Arlington,

Somerville,

Segerstrom,

.and Walter Mass, assignors to Trimount Coin Machine Company, Boston,Mass, a corporation of Massachusetts I Ap plication February 19,1940,SerialNo.319,'780

. i The present invention relates to a mechanical construction asapplied toa frame or box which will permit the frame to be opened on ahinge and which will also allow disassembly of the elements of the box.The present-invention is more particularly applicable to large boxesorframes where one portion -forms;the 'cover which, from time to timemust be raised, and which, more infrequently must be removed; Theinvention further relates to a device for performing the functionspreviously; stated in such a way that the person wishing to remove thecover must know exactly how this is to be accomplished. In particularthe present invention is applicable tovendingmachinecases where thecases are locked after the material to be vended is inserted and whichnormally are filled simply by tilting the cover without removing it. Attimes however in such machines it is useful to be able to remove thewhole cover and this is done in the present invention without any toolsand with great ease without in any way lessening the locking effect orsafety of the contents within that is ordinarily provided with aninternal hinge. In the present invention the arrangementis such that theoperator must definitely know how the locking arrangement is arranged inorder that it may be withdrawn, and further the cover can only beremoved after the lock is opened. While the device provides a positivesafety element in this respect, the arrangement and mechanism in itselfis simple and is constructed out of simple mechanically stamped metalsheets.

The invention will be more fully described in connection with thedrawings in which:

Figure 1 shows a perspective view of the invention with the pieces in apartially opened position.

Figure 2 shows a section on the line 2--2 of Figure 1, and,

Figure 3 shows a perspective view with fragments removed to indicate thecooperation of the various parts of the mechanism and also to show theconstruction as applied to a cover of a vending machine.

The various elements of the mechanism will be indicated by the samenumbers in the drawings.-

In Figure 1 there is indicated a back frame I to which an angle element2 is riveted having a forwardly extending plate or bracket 3. The plate2 may extend the whole width of the frame and is provided at intervalswith outwardly projecting tongues 4, 4, 4, indicated in Figure 1. Thesetongues are composed of an arcuate section 5 and a fiat portion 6extending from the 5 Claims. (01. 16-172) end of the arcuate portion.The fiat portion 6 is preferably in a plane at right angles to the backframe I, although other angles may be used, but preferably the directionnormal to the back surface is desired. A slot 1 is positioned within theflat plate 6 which serves to receive the tongue 8 pressed out of theother element 9 of the frame. The element 9 of the frame may be aportion of the cover I or it may be Welded to it. The element 9 isprovided with a flange l0 extending at right angles to the plate ll ofthe element 9. This downwardly extending flange is provided with slotsI2, -l2,- [2, which engage the projectingtongues or elements of theangle element 2. The element 9 by virtue of the plates H and II] has acorner 13 which bears against the back element l of the frame. In theclosed position the plate II] has its slot l2 locked in the lower end ofthe arcuate element and in this position the plate l0 bears against theinner surface of the plate 2 while the plate II on its inner surfacerests upon the top of the member 6 with the tongue registering in theslot I. As the cover I4 is raised (Figure 3), the corner l3 pivotsagainst the back. I and the slot I2 in the plate 10 follows the curvedplate 5. At the same time the curved projection 8, projecting from thetop plate ll, withdraws from the plate 6. It will be noted in theposition indicated in Figure 2 that with the plate ll tilted at quite avertical angle, that the tongue 8 has just completely-withdrawn from theplate 6. By curving the plate 6 slightly downward, this angle, at whichthe tongue 8 clears the plate, can be lessened- After the tongue hascleared the plate, the whole cover may be removed by swinging the plateH in a curve to permit the plate II] to be removed from the curvedportion 5 and the flat portion 6.

Without knowing the construction of various elements, and some littleexperience in handling the cover, considerable difliculty is experiencedin taking the cover off. Apart from this however, which is highlydesirable, it is very easy to raise the cover to insert things inside ormake any necessary changes. It is obvious that a support may be used tohold the cover in a raised position, and when the case is locked by thelock l5 on the cover to the back I, there is no possibility of removingthe cover without freeing the lock.

Having now described our invention, we claim:

1. In a frame having at least two elements linked together, comprisingin combination a plate, having an arcuate section and terminating in aflat section projecting from one of said elements, the second element ofsaid frame having members, respectively, enveloping and passing throughsaid plate member, said enveloping member being proportioned to engagethe arcuate and flat plate after said other member has become clear ofsaid plate in the relative movements of said two elements.

2. In a frame having two elements comprising a back member and a cover,a plate having an arcuate section and terminating in a fiat sectionmounted on said back member with said fiat section projectingsubstantially normally to the surface of the back member, said flatsection having a perforation therein, said cover having a tongueengaging in said flat section anda flange having a slot engaging saidflat and arcuate plate, said flange in the normally closed position ofsaid cover engaging the arcuate section of said plate.

3. In a frame having two elements comprising a back member and a cover,a plate having an arcuatesection and terminating in a fiat sectionmounted on said back member with said flat section projectingsubstantially normally to the surface of the back member, said flatsection having a perforation therein, said cover having an angleelement, the corner of which normally comes in contact with the backmember said angle element having a plurality of members engaging saidarcuate and flat plate and having such proportions that one of saidmembers disengages before the others.

4. In a frame having two elements comprising a back member and a cover,a plate having an arcuate section and terminating in a fiat sectionmounted on said back member with said flat sectionprojectingsubstantially normally to the surface of the back member, saidflat section plate while the first member of said angle element stillengages said plate.

5. In a frame having two elements comprising a back member and a cover,a plate having an arcuate section and terminating in a flat sectionmounted on said back member with said flat section projectingsubstantially normally to the surface of the back member, said flatsection having a perforation therein, said cover having an angleelement, the corner of which normally comes in contact with the backmember, one member of said angle element being normally parallel to saidback member when said cover is closed and the other member beingnormally perpendicular thereto, the said parallel angle element having aslot therein engaging said plate and the said perpendicular elementhaving a projecting tongue engaging the perforation in said plate, saidtongue being of such a length that it disengages said plate while theparallel member of said angle element still engages said plate as thecover is being raised.

ERNEST W; HANDLEY.

WALTER SEGERS'I'ROM.

